Research quesion: 1. The difference between songs of Rihanna and Beyonc, the queens of pop music 2. The characterist of pop-music.
Corpus: The selected artists are Rihanna and Beyonce. - Rihanna: - 13 albums released. Excluding the edit,remix,live versions, there are 8 official albums with 106 observations in total. - The album “a girl like me” obtain the lowest album popularity (pop=46), whereas the other 7 are within the range from 60 to 80. - Reyonce: - 12 albums released. Excluding the edit,remix, live versions, there are 5 official albums with 84 observations in total. -